Just a day. As I was leaving the house I spotted a few new things open, see photos below. There were as predicted more large daffs but also these miniatures ("tete a tete") and more iris opening.

Lecture today was bouncing balls and particle systems or maybe that was exploding bouncing balls. I don't know. How to control something moving is best done with bouncing balls with appropriate physics references. The other class had their choice of mad scientist's lair with tesla coils, setting something on fire, or blowing something up. Since this is all virtual it is socially acceptable.